ABSTRACT

Density results for dilute aqueous solutions of six alcohols with a saturated cycle in the molecule (cyclopentanol, cyclohexanol, cycloheptanol, cyclooctanol, cyclohexylmethanol, and 2-cyclohexylethanol) obtained using a flow vibrating-tube densimeter are presented together with partial molar volumes at infinite dilution (standard partial molar volumes, V m;2) calculated from the measured values. The measurements were performed at temperatures from T = 298 K up to T = 573 K at pressure close to the saturated vapour pressure of water and at pressures (15 and 30) MPa. Trends in homologous series are discussed and group contributions to standard partial molar volume are evaluated. Values of an analogue of isothermal compressibility, j T;2 1/4 o1=V m;2Po@V m;2=@pPT , are also evaluated and compared with those for aliphatic and aromatic monohydric alcohols.

Compounds

#	Formula	Name
1	C5H10O	cyclopentanol
2	C6H12O	cyclohexanol
3	C7H14O	cycloheptanol
4	C8H16O	cyclooctanol
5	C7H14O	cyclohexylmethanol
6	C8H16O	2-cyclohexylethanol
7	H2O	water

Datasets

The table above is generated from the ThermoML associated json file (link above). POMD and RXND refer to PureOrMixture and Reaction Datasets. The compound numbers are included in properties, variables, and phases, if specificied; the numbers refer to the table of compounds on the left.
Type	Compound-#	Property	Variable	Phase	Method	#Points
POMD	1 7	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid Molality, mol/kg - 1; Liquid	Liquid	Vibrating tube method	486
POMD	2 7	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid Molality, mol/kg - 2; Liquid	Liquid	Vibrating tube method	477
POMD	3 7	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid Molality, mol/kg - 3; Liquid	Liquid	Vibrating tube method	379
POMD	4 7	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid Molality, mol/kg - 4; Liquid	Liquid	Vibrating tube method	267
POMD	5 7	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid Molality, mol/kg - 5; Liquid	Liquid	Vibrating tube method	307
POMD	6 7	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid Molality, mol/kg - 6; Liquid	Liquid	Vibrating tube method	310

Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Partial molar volumes of organic solutes in water. XIX. Cyclic alcohols(aq) at T = (298 to 573) K and at pressures up to 30 MPa

Cibulka, I.[Ivan], Hnedkovsky, L.[Lubomir]

ABSTRACT